A Survey of Routing Scheme for Vehicles in Intermittently Connected Network

Abstract- Delay-tolerant networks (DTNs) have the potential to interconnect devices in regions that current networking technology cannot reach. Delay Tolerant Networks are utilized in various operational environments, including those subject to disruption and disconnection and those with high-delay, such as Vehicular ad-hoc Networks (VANET). Vehicular networks can be seen as an example of hybrid delay tolerant network where a mixture of info stations and vehicles can be used to geographically route the information messages to the right location. VDTN’S routing protocols fall into two major categories of topology-based and geographic routing. In this paper, we provide a survey of geographic routing protocols for vehicular delay tolerant networks, and discuss the pros and cons of these routing protocols, and define some open issues and possible directions of future research related to using geographic routing protocols for vehicular delay tolerant networks